this afternoon, niners do or die 48 degrees 5:00 with numbers dropping through the 40s. sun sets at 5:12 it will be cold and clear conditions. we'll look for overnight lows, colder than we had this morning. upper 20s but higher elevations we had plenty of mid 20s. expect that again. 30 at the coastguard. here is the seven-day forecast, freeze watch for the entire bay area tonight. still a cold morning on monday. tuesday and wednesday milder and warming up by the end of next week. >> katie: it's hard to imagine to be warm when you are so cold. >> this is one of those rare times when the bay area's forecast coincides with what other people experience during winter. our microclimates make it of the few places in the world with different climates at once. that is what we are exploring and ex explaining this weekend. >> microclimates are changing. our weather is upside-down and coldest months are off set. >> katie: the "abc 7 news" special, inside bay area weather airs tomorrow evening at 6:30 here on abc7. >>> a bay area start-up is asking for unusual contradictions from the